The answer is 22.5 so the reminder will be 1/2 or .5
A system of linear equations usually has a single solution, but sometimes it can have no solution (parallel lines) or infinite solutions (same line).
A system of linear equations has one solution when the graphs intersect at a point...!
Answer:
x = 4.
Step-by-step explanation:
We see that it passes through the x axis at the point (4, 0) so x = 4 is a solution.
Check by solving the equation
x^2 - 4x + 13 = 13
Subtract 13 from both sides:
x^2 - 4x = 0
x(x - 4) = 0
x = 0 or x - 4 = 0, so:
x = 0 or 4.
Answer:
24 cent
Step-by-step explanation:
If 13 inches of wire cost 39 cent.
We have to calculate how much 1 inch of wire would cost first, before determining the cost of 8 inches of wire.
If 13 inches of wire costs 39cents, Then 1 inch of wire would cost 3 cent.
That is 39/13, which gives 3.
If 1 inch of wire cost 3 cents. Two inches of wire would cost 6 cents we 3 inches of wire costs 9 cents.
To get the cost of 8 inches of wire, we therefore multiply 8 by 3, which gives 24.
8 inches of wire costs 24 cents.
Bobbie: x comic books
Kenny: 9 more comic books than Bobbie: x + 9
Together: 95 comic books
To write the equation that could be used to find the number of comic books they each have, we have to put it together:
x + (x + 9) = 95
x + x + 9 = 95
2 * x = 95 - 9
2 * x = 86 /2
x = 86 / 2
x = 43
Result: Bobbie has 43 comic books, Kenny has 52 comic books (43 + 9).
